Found in the December 1974 issue of Radio Electronics, this circuit is similar to the previous one, only using another TTL counter. The circuit must be powered by 5 V.
This Siliconix circuit was found in a 1980s documentation. The coil consists of 18 turns of 22...
With the configuration shown, the output capacity of the LM12 can be doubled, which is 4 A. The...
This circuit was found in a 1976 NASA manual, making use of components of the time. The transistor...